E211: Sodium benzoate
Preservative; can form carcinogenic benzene when heated with vitamin C. Verdict: debated
| Code | E211 |
| Name | Sodium benzoate |
| Also known as | sodium benzoate |
| Group | E200–E299 — preservatives |
| Verdict | debated |
Where you meet it
- soda
- sauces
- marinades
- juices
Frequently asked questions
- Is it true that E211 forms benzene?
- When combined with ascorbic acid (E300) and subjected to heat or prolonged storage, benzoate can form trace amounts of benzene. This is why its combination with vitamin C in beverages is considered undesirable.
- Is E211 dangerous?
- On the classification this reference uses, E211 is "debated". Preservative; can form carcinogenic benzene when heated with vitamin C. That is a summary of the Russian TR CU 029/2012 list and the EU permitted lists, not medical advice.
- How do I check whether E211 is in a product I have?
- Photograph the barcode or the ingredients panel — the app reads the list and flags every additive it finds. Three checks are free, with no account.
Check a product rather than guess. Photograph the barcode and the app reads the ingredients, decodes every code and marks the ones worth knowing about.
Others in this group: E250 · E202 · E220 · E251 · the full table
This reference is for information only and does not replace advice from your doctor.